1/*
2 * Copyright 2012-15 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25
26#include "reg_helper.h"
27#include "dce_audio.h"
28#include "dce/dce_11_0_d.h"
29#include "dce/dce_11_0_sh_mask.h"
30
31#define DCE_AUD(audio)\
32 container_of(audio, struct dce_audio, base)
33
34#define CTX \
35 aud->base.ctx
36
37#define DC_LOGGER_INIT()
38
39#define REG(reg)\
40 (aud->regs->reg)
41
42#undef FN
43#define FN(reg_name, field_name) \
44 aud->shifts->field_name, aud->masks->field_name
45
46#define IX_REG(reg)\
47 ix ## reg
48
49#define AZ_REG_READ(reg_name) \
50 read_indirect_azalia_reg(audio, IX_REG(reg_name))
51
52#define AZ_REG_WRITE(reg_name, value) \
53 write_indirect_azalia_reg(audio, IX_REG(reg_name), value)
54
55static void write_indirect_azalia_reg(struct audio *audio,
56 uint32_t reg_index,
57 uint32_t reg_data)
58{
59 struct dce_audio *aud = DCE_AUD(audio);
60
61 /* AZALIA_F0_CODEC_ENDPOINT_INDEX endpoint index */
62 REG_SET(AZALIA_F0_CODEC_ENDPOINT_INDEX, 0,
63 AZALIA_ENDPOINT_REG_INDEX, reg_index);
64
65 /* AZALIA_F0_CODEC_ENDPOINT_DATA endpoint data */
66 REG_SET(AZALIA_F0_CODEC_ENDPOINT_DATA, 0,
67 AZALIA_ENDPOINT_REG_DATA, reg_data);
68}
69
70static uint32_t read_indirect_azalia_reg(struct audio *audio, uint32_t reg_index)
71{
72 struct dce_audio *aud = DCE_AUD(audio);
73
74 uint32_t value = 0;
75
76 /* AZALIA_F0_CODEC_ENDPOINT_INDEX endpoint index */
77 REG_SET(AZALIA_F0_CODEC_ENDPOINT_INDEX, 0,
78 AZALIA_ENDPOINT_REG_INDEX, reg_index);
79
80 /* AZALIA_F0_CODEC_ENDPOINT_DATA endpoint data */
81 value = REG_READ(AZALIA_F0_CODEC_ENDPOINT_DATA);
82
83 return value;
84}
85
86static bool is_audio_format_supported(
87 const struct audio_info *audio_info,
88 enum audio_format_code audio_format_code,
89 uint32_t *format_index)
90{
91 uint32_t index;
92 uint32_t max_channe_index = 0;
93 bool found = false;
94
95 if (audio_info == NULL)
96 return found;
97
98 /* pass through whole array */
99 for (index = 0; index < audio_info->mode_count; index++) {
100 if (audio_info->modes[index].format_code == audio_format_code) {
101 if (found) {
102 /* format has multiply entries, choose one with
103 * highst number of channels */
104 if (audio_info->modes[index].channel_count >
105 audio_info->modes[max_channe_index].channel_count) {
106 max_channe_index = index;
107 }
108 } else {
109 /* format found, save it's index */
110 found = true;
111 max_channe_index = index;
112 }
113 }
114 }
115
116 /* return index */
117 if (found && format_index != NULL)
118 *format_index = max_channe_index;
119
120 return found;
121}
122
123/*For HDMI, calculate if specified sample rates can fit into a given timing */
124static void check_audio_bandwidth_hdmi(
125 const struct audio_crtc_info *crtc_info,
126 uint32_t channel_count,
127 union audio_sample_rates *sample_rates)
128{
129 uint32_t samples;
130 uint32_t h_blank;
131 bool limit_freq_to_48_khz = false;
132 bool limit_freq_to_88_2_khz = false;
133 bool limit_freq_to_96_khz = false;
134 bool limit_freq_to_174_4_khz = false;
135 if (!crtc_info)
136 return;
137
138 /* For two channels supported return whatever sink support,unmodified*/
139 if (channel_count > 2) {
140
141 /* Based on HDMI spec 1.3 Table 7.5 */
142 if ((crtc_info->requested_pixel_clock_100Hz <= 270000) &&
143 (crtc_info->v_active <= 576) &&
144 !(crtc_info->interlaced) &&
145 !(crtc_info->pixel_repetition == 2 ||
146 crtc_info->pixel_repetition == 4)) {
147 limit_freq_to_48_khz = true;
148
149 } else if ((crtc_info->requested_pixel_clock_100Hz <= 270000) &&
150 (crtc_info->v_active <= 576) &&
151 (crtc_info->interlaced) &&
152 (crtc_info->pixel_repetition == 2)) {
153 limit_freq_to_88_2_khz = true;
154
155 } else if ((crtc_info->requested_pixel_clock_100Hz <= 540000) &&
156 (crtc_info->v_active <= 576) &&
157 !(crtc_info->interlaced)) {
158 limit_freq_to_174_4_khz = true;
159 }
160 }
161
162 /* Also do some calculation for the available Audio Bandwidth for the
163 * 8 ch (i.e. for the Layout 1 => ch > 2)
164 */
165 h_blank = crtc_info->h_total - crtc_info->h_active;
166
167 if (crtc_info->pixel_repetition)
168 h_blank *= crtc_info->pixel_repetition;
169
170 /*based on HDMI spec 1.3 Table 7.5 */
171 h_blank -= 58;
172 /*for Control Period */
173 h_blank -= 16;
174
175 samples = h_blank * 10;
176 /* Number of Audio Packets (multiplied by 10) per Line (for 8 ch number
177 * of Audio samples per line multiplied by 10 - Layout 1)
178 */
179 samples /= 32;
180 samples *= crtc_info->v_active;
181 /*Number of samples multiplied by 10, per second */
182 samples *= crtc_info->refresh_rate;
183 /*Number of Audio samples per second */
184 samples /= 10;
185
186 /* @todo do it after deep color is implemented
187 * 8xx - deep color bandwidth scaling
188 * Extra bandwidth is avaliable in deep color b/c link runs faster than
189 * pixel rate. This has the effect of allowing more tmds characters to
190 * be transmitted during blank
191 */
192
193 switch (crtc_info->color_depth) {
194 case COLOR_DEPTH_888:
195 samples *= 4;
196 break;
197 case COLOR_DEPTH_101010:
198 samples *= 5;
199 break;
200 case COLOR_DEPTH_121212:
201 samples *= 6;
202 break;
203 default:
204 samples *= 4;
205 break;
206 }
207
208 samples /= 4;
209
210 /*check limitation*/
211 if (samples < 88200)
212 limit_freq_to_48_khz = true;
213 else if (samples < 96000)
214 limit_freq_to_88_2_khz = true;
215 else if (samples < 176400)
216 limit_freq_to_96_khz = true;
217 else if (samples < 192000)
218 limit_freq_to_174_4_khz = true;
219
220 if (sample_rates != NULL) {
221 /* limit frequencies */
222 if (limit_freq_to_174_4_khz)
223 sample_rates->rate.RATE_192 = 0;
224
225 if (limit_freq_to_96_khz) {
226 sample_rates->rate.RATE_192 = 0;
227 sample_rates->rate.RATE_176_4 = 0;
228 }
229 if (limit_freq_to_88_2_khz) {
230 sample_rates->rate.RATE_192 = 0;
231 sample_rates->rate.RATE_176_4 = 0;
232 sample_rates->rate.RATE_96 = 0;
233 }
234 if (limit_freq_to_48_khz) {
235 sample_rates->rate.RATE_192 = 0;
236 sample_rates->rate.RATE_176_4 = 0;
237 sample_rates->rate.RATE_96 = 0;
238 sample_rates->rate.RATE_88_2 = 0;
239 }
240 }
241}
242static struct fixed31_32 get_link_symbol_clk_freq_mhz(enum dc_link_rate link_rate)
243{
244 switch (link_rate) {
245 case LINK_RATE_LOW:
246 return dc_fixpt_from_int(arg: 162); /* 162 MHz */
247 case LINK_RATE_HIGH:
248 return dc_fixpt_from_int(arg: 270); /* 270 MHz */
249 case LINK_RATE_HIGH2:
250 return dc_fixpt_from_int(arg: 540); /* 540 MHz */
251 case LINK_RATE_HIGH3:
252 return dc_fixpt_from_int(arg: 810); /* 810 MHz */
253 case LINK_RATE_UHBR10:
254 return dc_fixpt_from_fraction(numerator: 3125, denominator: 10); /* 312.5 MHz */
255 case LINK_RATE_UHBR13_5:
256 return dc_fixpt_from_fraction(numerator: 421875, denominator: 1000); /* 421.875 MHz */
257 case LINK_RATE_UHBR20:
258 return dc_fixpt_from_int(arg: 625); /* 625 MHz */
259 default:
260 /* Unexpected case, this requires debug if encountered. */
261 ASSERT(0);
262 return dc_fixpt_from_int(arg: 0);
263 }
264}
265
266struct dp_audio_layout_config {
267 uint8_t layouts_per_sample_denom;
268 uint8_t symbols_per_layout;
269 uint8_t max_layouts_per_audio_sdp;
270};
271
272static void get_audio_layout_config(
273 uint32_t channel_count,
274 enum dp_link_encoding encoding,
275 struct dp_audio_layout_config *output)
276{
277 /* Assuming L-PCM audio. Current implementation uses max 1 layout per SDP,
278 * with each layout being the same size (8ch layout).
279 */
280 if (encoding == DP_8b_10b_ENCODING) {
281 if (channel_count == 2) {
282 output->layouts_per_sample_denom = 4;
283 output->symbols_per_layout = 40;
284 output->max_layouts_per_audio_sdp = 1;
285 } else if (channel_count == 8 || channel_count == 6) {
286 output->layouts_per_sample_denom = 1;
287 output->symbols_per_layout = 40;
288 output->max_layouts_per_audio_sdp = 1;
289 }
290 } else if (encoding == DP_128b_132b_ENCODING) {
291 if (channel_count == 2) {
292 output->layouts_per_sample_denom = 4;
293 output->symbols_per_layout = 10;
294 output->max_layouts_per_audio_sdp = 1;
295 } else if (channel_count == 8 || channel_count == 6) {
296 output->layouts_per_sample_denom = 1;
297 output->symbols_per_layout = 10;
298 output->max_layouts_per_audio_sdp = 1;
299 }
300 }
301}
302
303static uint32_t get_av_stream_map_lane_count(
304 enum dp_link_encoding encoding,
305 enum dc_lane_count lane_count,
306 bool is_mst)
307{
308 uint32_t av_stream_map_lane_count = 0;
309
310 if (encoding == DP_8b_10b_ENCODING) {
311 if (!is_mst)
312 av_stream_map_lane_count = lane_count;
313 else
314 av_stream_map_lane_count = 4;
315 } else if (encoding == DP_128b_132b_ENCODING) {
316 av_stream_map_lane_count = 4;
317 }
318
319 ASSERT(av_stream_map_lane_count != 0);
320
321 return av_stream_map_lane_count;
322}
323
324static uint32_t get_audio_sdp_overhead(
325 enum dp_link_encoding encoding,
326 enum dc_lane_count lane_count,
327 bool is_mst)
328{
329 uint32_t audio_sdp_overhead = 0;
330
331 if (encoding == DP_8b_10b_ENCODING) {
332 if (is_mst)
333 audio_sdp_overhead = 16; /* 4 * 2 + 8 */
334 else
335 audio_sdp_overhead = lane_count * 2 + 8;
336 } else if (encoding == DP_128b_132b_ENCODING) {
337 audio_sdp_overhead = 10; /* 4 x 2.5 */
338 }
339
340 ASSERT(audio_sdp_overhead != 0);
341
342 return audio_sdp_overhead;
343}
344
345static uint32_t calculate_required_audio_bw_in_symbols(
346 const struct audio_crtc_info *crtc_info,
347 const struct dp_audio_layout_config *layout_config,
348 uint32_t channel_count,
349 uint32_t sample_rate_hz,
350 uint32_t av_stream_map_lane_count,
351 uint32_t audio_sdp_overhead)
352{
353 /* DP spec recommends between 1.05 to 1.1 safety margin to prevent sample under-run */
354 struct fixed31_32 audio_sdp_margin = dc_fixpt_from_fraction(numerator: 110, denominator: 100);
355 struct fixed31_32 horizontal_line_freq_khz = dc_fixpt_from_fraction(
356 numerator: crtc_info->requested_pixel_clock_100Hz, denominator: (long long)crtc_info->h_total * 10);
357 struct fixed31_32 samples_per_line;
358 struct fixed31_32 layouts_per_line;
359 struct fixed31_32 symbols_per_sdp_max_layout;
360 struct fixed31_32 remainder;
361 uint32_t num_sdp_with_max_layouts;
362 uint32_t required_symbols_per_hblank;
363
364 samples_per_line = dc_fixpt_from_fraction(numerator: sample_rate_hz, denominator: 1000);
365 samples_per_line = dc_fixpt_div(arg1: samples_per_line, arg2: horizontal_line_freq_khz);
366 layouts_per_line = dc_fixpt_div_int(arg1: samples_per_line, arg2: layout_config->layouts_per_sample_denom);
367
368 num_sdp_with_max_layouts = dc_fixpt_floor(
369 arg: dc_fixpt_div_int(arg1: layouts_per_line, arg2: layout_config->max_layouts_per_audio_sdp));
370 symbols_per_sdp_max_layout = dc_fixpt_from_int(
371 arg: layout_config->max_layouts_per_audio_sdp * layout_config->symbols_per_layout);
372 symbols_per_sdp_max_layout = dc_fixpt_add_int(arg1: symbols_per_sdp_max_layout, arg2: audio_sdp_overhead);
373 symbols_per_sdp_max_layout = dc_fixpt_mul(arg1: symbols_per_sdp_max_layout, arg2: audio_sdp_margin);
374 required_symbols_per_hblank = num_sdp_with_max_layouts;
375 required_symbols_per_hblank *= ((dc_fixpt_ceil(arg: symbols_per_sdp_max_layout) + av_stream_map_lane_count) /
376 av_stream_map_lane_count) * av_stream_map_lane_count;
377
378 if (num_sdp_with_max_layouts != dc_fixpt_ceil(
379 arg: dc_fixpt_div_int(arg1: layouts_per_line, arg2: layout_config->max_layouts_per_audio_sdp))) {
380 remainder = dc_fixpt_sub_int(arg1: layouts_per_line,
381 arg2: num_sdp_with_max_layouts * layout_config->max_layouts_per_audio_sdp);
382 remainder = dc_fixpt_mul_int(arg1: remainder, arg2: layout_config->symbols_per_layout);
383 remainder = dc_fixpt_add_int(arg1: remainder, arg2: audio_sdp_overhead);
384 remainder = dc_fixpt_mul(arg1: remainder, arg2: audio_sdp_margin);
385 required_symbols_per_hblank += ((dc_fixpt_ceil(arg: remainder) + av_stream_map_lane_count) /
386 av_stream_map_lane_count) * av_stream_map_lane_count;
387 }
388
389 return required_symbols_per_hblank;
390}
391
392/* Current calculation only applicable for 8b/10b MST and 128b/132b SST/MST.
393 */
394static uint32_t calculate_available_hblank_bw_in_symbols(
395 const struct audio_crtc_info *crtc_info,
396 const struct audio_dp_link_info *dp_link_info)
397{
398 uint64_t hblank = crtc_info->h_total - crtc_info->h_active;
399 struct fixed31_32 hblank_time_msec =
400 dc_fixpt_from_fraction(numerator: hblank * 10, denominator: crtc_info->requested_pixel_clock_100Hz);
401 struct fixed31_32 lsclkfreq_mhz =
402 get_link_symbol_clk_freq_mhz(link_rate: dp_link_info->link_rate);
403 struct fixed31_32 average_stream_sym_bw_frac;
404 struct fixed31_32 peak_stream_bw_kbps;
405 struct fixed31_32 bits_per_pixel;
406 struct fixed31_32 link_bw_kbps;
407 struct fixed31_32 available_stream_sym_count;
408 uint32_t available_hblank_bw = 0; /* in stream symbols */
409
410 if (crtc_info->dsc_bits_per_pixel) {
411 bits_per_pixel = dc_fixpt_from_fraction(numerator: crtc_info->dsc_bits_per_pixel, denominator: 16);
412 } else {
413 switch (crtc_info->color_depth) {
414 case COLOR_DEPTH_666:
415 bits_per_pixel = dc_fixpt_from_int(arg: 6);
416 break;
417 case COLOR_DEPTH_888:
418 bits_per_pixel = dc_fixpt_from_int(arg: 8);
419 break;
420 case COLOR_DEPTH_101010:
421 bits_per_pixel = dc_fixpt_from_int(arg: 10);
422 break;
423 case COLOR_DEPTH_121212:
424 bits_per_pixel = dc_fixpt_from_int(arg: 12);
425 break;
426 default:
427 /* Default to commonly supported color depth. */
428 bits_per_pixel = dc_fixpt_from_int(arg: 8);
429 break;
430 }
431
432 bits_per_pixel = dc_fixpt_mul_int(arg1: bits_per_pixel, arg2: 3);
433
434 if (crtc_info->pixel_encoding == PIXEL_ENCODING_YCBCR422) {
435 bits_per_pixel = dc_fixpt_div_int(arg1: bits_per_pixel, arg2: 3);
436 bits_per_pixel = dc_fixpt_mul_int(arg1: bits_per_pixel, arg2: 2);
437 } else if (crtc_info->pixel_encoding == PIXEL_ENCODING_YCBCR420) {
438 bits_per_pixel = dc_fixpt_div_int(arg1: bits_per_pixel, arg2: 2);
439 }
440 }
441
442 /* Use simple stream BW calculation because mainlink overhead is
443 * accounted for separately in the audio BW calculations.
444 */
445 peak_stream_bw_kbps = dc_fixpt_from_fraction(numerator: crtc_info->requested_pixel_clock_100Hz, denominator: 10);
446 peak_stream_bw_kbps = dc_fixpt_mul(arg1: peak_stream_bw_kbps, arg2: bits_per_pixel);
447 link_bw_kbps = dc_fixpt_from_int(arg: dp_link_info->link_bandwidth_kbps);
448 average_stream_sym_bw_frac = dc_fixpt_div(arg1: peak_stream_bw_kbps, arg2: link_bw_kbps);
449
450 available_stream_sym_count = dc_fixpt_mul_int(arg1: hblank_time_msec, arg2: 1000);
451 available_stream_sym_count = dc_fixpt_mul(arg1: available_stream_sym_count, arg2: lsclkfreq_mhz);
452 available_stream_sym_count = dc_fixpt_mul(arg1: available_stream_sym_count, arg2: average_stream_sym_bw_frac);
453 available_hblank_bw = dc_fixpt_floor(arg: available_stream_sym_count);
454 available_hblank_bw *= dp_link_info->lane_count;
455 available_hblank_bw -= crtc_info->dsc_num_slices * 4; /* EOC overhead */
456
457 if (available_hblank_bw < dp_link_info->hblank_min_symbol_width)
458 /* Each symbol takes 4 frames */
459 available_hblank_bw = 4 * dp_link_info->hblank_min_symbol_width;
460
461 if (available_hblank_bw < 12)
462 available_hblank_bw = 0;
463 else
464 available_hblank_bw -= 12; /* Main link overhead */
465
466 return available_hblank_bw;
467}
468
469static void check_audio_bandwidth_dp(
470 const struct audio_crtc_info *crtc_info,
471 const struct audio_dp_link_info *dp_link_info,
472 uint32_t channel_count,
473 union audio_sample_rates *sample_rates)
474{
475 struct dp_audio_layout_config layout_config = {0};
476 uint32_t available_hblank_bw;
477 uint32_t av_stream_map_lane_count;
478 uint32_t audio_sdp_overhead;
479
480 /* TODO: Add validation for SST 8b/10 case */
481 if (!dp_link_info->is_mst && dp_link_info->encoding == DP_8b_10b_ENCODING)
482 return;
483
484 available_hblank_bw = calculate_available_hblank_bw_in_symbols(
485 crtc_info, dp_link_info);
486 av_stream_map_lane_count = get_av_stream_map_lane_count(
487 encoding: dp_link_info->encoding, lane_count: dp_link_info->lane_count, is_mst: dp_link_info->is_mst);
488 audio_sdp_overhead = get_audio_sdp_overhead(
489 encoding: dp_link_info->encoding, lane_count: dp_link_info->lane_count, is_mst: dp_link_info->is_mst);
490 get_audio_layout_config(
491 channel_count, encoding: dp_link_info->encoding, output: &layout_config);
492
493 if (layout_config.max_layouts_per_audio_sdp == 0 ||
494 layout_config.symbols_per_layout == 0 ||
495 layout_config.layouts_per_sample_denom == 0) {
496 return;
497 }
498 if (available_hblank_bw < calculate_required_audio_bw_in_symbols(
499 crtc_info, layout_config: &layout_config, channel_count, sample_rate_hz: 192000,
500 av_stream_map_lane_count, audio_sdp_overhead))
501 sample_rates->rate.RATE_192 = 0;
502 if (available_hblank_bw < calculate_required_audio_bw_in_symbols(
503 crtc_info, layout_config: &layout_config, channel_count, sample_rate_hz: 176400,
504 av_stream_map_lane_count, audio_sdp_overhead))
505 sample_rates->rate.RATE_176_4 = 0;
506 if (available_hblank_bw < calculate_required_audio_bw_in_symbols(
507 crtc_info, layout_config: &layout_config, channel_count, sample_rate_hz: 96000,
508 av_stream_map_lane_count, audio_sdp_overhead))
509 sample_rates->rate.RATE_96 = 0;
510 if (available_hblank_bw < calculate_required_audio_bw_in_symbols(
511 crtc_info, layout_config: &layout_config, channel_count, sample_rate_hz: 88200,
512 av_stream_map_lane_count, audio_sdp_overhead))
513 sample_rates->rate.RATE_88_2 = 0;
514 if (available_hblank_bw < calculate_required_audio_bw_in_symbols(
515 crtc_info, layout_config: &layout_config, channel_count, sample_rate_hz: 48000,
516 av_stream_map_lane_count, audio_sdp_overhead))
517 sample_rates->rate.RATE_48 = 0;
518 if (available_hblank_bw < calculate_required_audio_bw_in_symbols(
519 crtc_info, layout_config: &layout_config, channel_count, sample_rate_hz: 44100,
520 av_stream_map_lane_count, audio_sdp_overhead))
521 sample_rates->rate.RATE_44_1 = 0;
522 if (available_hblank_bw < calculate_required_audio_bw_in_symbols(
523 crtc_info, layout_config: &layout_config, channel_count, sample_rate_hz: 32000,
524 av_stream_map_lane_count, audio_sdp_overhead))
525 sample_rates->rate.RATE_32 = 0;
526}
527
528static void check_audio_bandwidth(
529 const struct audio_crtc_info *crtc_info,
530 const struct audio_dp_link_info *dp_link_info,
531 uint32_t channel_count,
532 enum signal_type signal,
533 union audio_sample_rates *sample_rates)
534{
535 switch (signal) {
536 case SIGNAL_TYPE_HDMI_TYPE_A:
537 check_audio_bandwidth_hdmi(
538 crtc_info, channel_count, sample_rates);
539 break;
540 case SIGNAL_TYPE_EDP:
541 case SIGNAL_TYPE_DISPLAY_PORT:
542 case SIGNAL_TYPE_DISPLAY_PORT_MST:
543 check_audio_bandwidth_dp(
544 crtc_info, dp_link_info, channel_count, sample_rates);
545 break;
546 default:
547 break;
548 }
549}
550
551/* expose/not expose HBR capability to Audio driver */
552static void set_high_bit_rate_capable(
553 struct audio *audio,
554 bool capable)
555{
556 uint32_t value = 0;
557
558 /* set high bit rate audio capable*/
559 value = AZ_REG_READ(AZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_HBR);
560
561 set_reg_field_value(value, capable,
562 AZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_HBR,
563 HBR_CAPABLE);
564
565 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_HBR, value);
566}
567
568/* set video latency in ms/2+1 */
569static void set_video_latency(
570 struct audio *audio,
571 int latency_in_ms)
572{
573 uint32_t value = 0;
574
575 if ((latency_in_ms < 0) || (latency_in_ms > 255))
576 return;
577
578 value = AZ_REG_READ(AZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC);
579
580 set_reg_field_value(value, latency_in_ms,
581 AZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC,
582 VIDEO_LIPSYNC);
583
584 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC,
585 value);
586}
587
588/* set audio latency in ms/2+1 */
589static void set_audio_latency(
590 struct audio *audio,
591 int latency_in_ms)
592{
593 uint32_t value = 0;
594
595 if (latency_in_ms < 0)
596 latency_in_ms = 0;
597
598 if (latency_in_ms > 255)
599 latency_in_ms = 255;
600
601 value = AZ_REG_READ(AZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC);
602
603 set_reg_field_value(value, latency_in_ms,
604 AZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC,
605 AUDIO_LIPSYNC);
606
607 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC,
608 value);
609}
610
611void dce_aud_az_enable(struct audio *audio)
612{
613 uint32_t value = AZ_REG_READ(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL);
614 DC_LOGGER_INIT();
615
616 set_reg_field_value(value, 1,
617 AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL,
618 CLOCK_GATING_DISABLE);
619 set_reg_field_value(value, 1,
620 AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL,
621 AUDIO_ENABLED);
622
623 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, value);
624 set_reg_field_value(value, 0,
625 AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL,
626 CLOCK_GATING_DISABLE);
627 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, value);
628
629 DC_LOG_HW_AUDIO("\n\t========= AUDIO:dce_aud_az_enable: index: %u data: 0x%x\n",
630 audio->inst, value);
631}
632
633void dce_aud_az_disable_hbr_audio(struct audio *audio)
634{
635 set_high_bit_rate_capable(audio, capable: false);
636}
637
638void dce_aud_az_disable(struct audio *audio)
639{
640 uint32_t value;
641 DC_LOGGER_INIT();
642
643 value = AZ_REG_READ(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL);
644 set_reg_field_value(value, 1,
645 AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL,
646 CLOCK_GATING_DISABLE);
647 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, value);
648
649 set_reg_field_value(value, 0,
650 AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL,
651 AUDIO_ENABLED);
652 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, value);
653
654 set_reg_field_value(value, 0,
655 AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL,
656 CLOCK_GATING_DISABLE);
657 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, value);
658 value = AZ_REG_READ(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL);
659 DC_LOG_HW_AUDIO("\n\t========= AUDIO:dce_aud_az_disable: index: %u data: 0x%x\n",
660 audio->inst, value);
661}
662
663void dce_aud_az_configure(
664 struct audio *audio,
665 enum signal_type signal,
666 const struct audio_crtc_info *crtc_info,
667 const struct audio_info *audio_info,
668 const struct audio_dp_link_info *dp_link_info)
669{
670 struct dce_audio *aud = DCE_AUD(audio);
671
672 uint32_t speakers = audio_info->flags.info.ALLSPEAKERS;
673 uint32_t value;
674 uint32_t field = 0;
675 enum audio_format_code audio_format_code;
676 uint32_t format_index;
677 uint32_t index;
678 bool is_ac3_supported = false;
679 union audio_sample_rates sample_rate;
680 uint32_t strlen = 0;
681
682 if (signal == SIGNAL_TYPE_VIRTUAL)
683 return;
684
685 value = AZ_REG_READ(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL);
686 set_reg_field_value(value, 1,
687 AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL,
688 CLOCK_GATING_DISABLE);
689 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, value);
690
691 /* Speaker Allocation */
692 /*
693 uint32_t value;
694 uint32_t field = 0;*/
695 value = AZ_REG_READ(AZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER);
696
697 set_reg_field_value(value,
698 speakers,
699 AZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER,
700 SPEAKER_ALLOCATION);
701
702 /* LFE_PLAYBACK_LEVEL = LFEPBL
703 * LFEPBL = 0 : Unknown or refer to other information
704 * LFEPBL = 1 : 0dB playback
705 * LFEPBL = 2 : +10dB playback
706 * LFE_BL = 3 : Reserved
707 */
708 set_reg_field_value(value,
709 0,
710 AZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER,
711 LFE_PLAYBACK_LEVEL);
712 /* todo: according to reg spec LFE_PLAYBACK_LEVEL is read only.
713 * why are we writing to it? DCE8 does not write this */
714
715
716 set_reg_field_value(value,
717 0,
718 AZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER,
719 HDMI_CONNECTION);
720
721 set_reg_field_value(value,
722 0,
723 AZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER,
724 DP_CONNECTION);
725
726 field = get_reg_field_value(value,
727 AZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER,
728 EXTRA_CONNECTION_INFO);
729
730 field &= ~0x1;
731
732 set_reg_field_value(value,
733 field,
734 AZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER,
735 EXTRA_CONNECTION_INFO);
736
737 /* set audio for output signal */
738 switch (signal) {
739 case SIGNAL_TYPE_HDMI_TYPE_A:
740 set_reg_field_value(value,
741 1,
742 AZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER,
743 HDMI_CONNECTION);
744
745 break;
746
747 case SIGNAL_TYPE_EDP:
748 case SIGNAL_TYPE_DISPLAY_PORT:
749 case SIGNAL_TYPE_DISPLAY_PORT_MST:
750 set_reg_field_value(value,
751 1,
752 AZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER,
753 DP_CONNECTION);
754 break;
755 default:
756 BREAK_TO_DEBUGGER();
757 break;
758 }
759
760 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER, value);
761
762 /* ACP Data - Supports AI */
763 value = AZ_REG_READ(AZALIA_F0_CODEC_PIN_CONTROL_ACP_DATA);
764
765 set_reg_field_value(
766 value,
767 audio_info->flags.info.SUPPORT_AI,
768 AZALIA_F0_CODEC_PIN_CONTROL_ACP_DATA,
769 SUPPORTS_AI);
770
771 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_ACP_DATA, value);
772
773 /* Audio Descriptors */
774 /* pass through all formats */
775 for (format_index = 0; format_index < AUDIO_FORMAT_CODE_COUNT;
776 format_index++) {
777 audio_format_code =
778 (AUDIO_FORMAT_CODE_FIRST + format_index);
779
780 /* those are unsupported, skip programming */
781 if (audio_format_code == AUDIO_FORMAT_CODE_1BITAUDIO ||
782 audio_format_code == AUDIO_FORMAT_CODE_DST)
783 continue;
784
785 value = 0;
786
787 /* check if supported */
788 if (is_audio_format_supported(
789 audio_info, audio_format_code, format_index: &index)) {
790 const struct audio_mode *audio_mode =
791 &audio_info->modes[index];
792 union audio_sample_rates sample_rates =
793 audio_mode->sample_rates;
794 uint8_t byte2 = audio_mode->max_bit_rate;
795 uint8_t channel_count = audio_mode->channel_count;
796
797 /* adjust specific properties */
798 switch (audio_format_code) {
799 case AUDIO_FORMAT_CODE_LINEARPCM: {
800
801 check_audio_bandwidth(
802 crtc_info,
803 dp_link_info,
804 channel_count,
805 signal,
806 sample_rates: &sample_rates);
807
808 byte2 = audio_mode->sample_size;
809
810 set_reg_field_value(value,
811 sample_rates.all,
812 AZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0,
813 SUPPORTED_FREQUENCIES_STEREO);
814 }
815 break;
816 case AUDIO_FORMAT_CODE_AC3:
817 is_ac3_supported = true;
818 break;
819 case AUDIO_FORMAT_CODE_DOLBYDIGITALPLUS:
820 case AUDIO_FORMAT_CODE_DTS_HD:
821 case AUDIO_FORMAT_CODE_MAT_MLP:
822 case AUDIO_FORMAT_CODE_DST:
823 case AUDIO_FORMAT_CODE_WMAPRO:
824 byte2 = audio_mode->vendor_specific;
825 break;
826 default:
827 break;
828 }
829
830 /* fill audio format data */
831 set_reg_field_value(value,
832 channel_count - 1,
833 AZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0,
834 MAX_CHANNELS);
835
836 set_reg_field_value(value,
837 sample_rates.all,
838 AZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0,
839 SUPPORTED_FREQUENCIES);
840
841 set_reg_field_value(value,
842 byte2,
843 AZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0,
844 DESCRIPTOR_BYTE_2);
845 } /* if */
846
847 AZ_REG_WRITE(
848 AZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0 + format_index,
849 value);
850 } /* for */
851
852 if (is_ac3_supported)
853 /* todo: this reg global. why program global register? */
854 REG_WRITE(AZALIA_F0_CODEC_FUNCTION_PARAMETER_STREAM_FORMATS,
855 0x05);
856
857 /* check for 192khz/8-Ch support for HBR requirements */
858 sample_rate.all = 0;
859 sample_rate.rate.RATE_192 = 1;
860
861 check_audio_bandwidth(
862 crtc_info,
863 dp_link_info,
864 channel_count: 8,
865 signal,
866 sample_rates: &sample_rate);
867
868 set_high_bit_rate_capable(audio, capable: sample_rate.rate.RATE_192);
869
870 /* Audio and Video Lipsync */
871 set_video_latency(audio, latency_in_ms: audio_info->video_latency);
872 set_audio_latency(audio, latency_in_ms: audio_info->audio_latency);
873
874 value = 0;
875 set_reg_field_value(value, audio_info->manufacture_id,
876 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO0,
877 MANUFACTURER_ID);
878
879 set_reg_field_value(value, audio_info->product_id,
880 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO0,
881 PRODUCT_ID);
882
883 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO0,
884 value);
885
886 value = 0;
887
888 /*get display name string length */
889 while (audio_info->display_name[strlen++] != '\0') {
890 if (strlen >=
891 MAX_HW_AUDIO_INFO_DISPLAY_NAME_SIZE_IN_CHARS)
892 break;
893 }
894 set_reg_field_value(value, strlen,
895 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO1,
896 SINK_DESCRIPTION_LEN);
897
898 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO1,
899 value);
900 DC_LOG_HW_AUDIO("\n\tAUDIO:az_configure: index: %u data, 0x%x, displayName %s: \n",
901 audio->inst, value, audio_info->display_name);
902
903 /*
904 *write the port ID:
905 *PORT_ID0 = display index
906 *PORT_ID1 = 16bit BDF
907 *(format MSB->LSB: 8bit Bus, 5bit Device, 3bit Function)
908 */
909
910 value = 0;
911
912 set_reg_field_value(value, audio_info->port_id[0],
913 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO2,
914 PORT_ID0);
915
916 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO2, value);
917
918 value = 0;
919 set_reg_field_value(value, audio_info->port_id[1],
920 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO3,
921 PORT_ID1);
922
923 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO3, value);
924
925 /*write the 18 char monitor string */
926
927 value = 0;
928 set_reg_field_value(value, audio_info->display_name[0],
929 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO4,
930 DESCRIPTION0);
931
932 set_reg_field_value(value, audio_info->display_name[1],
933 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO4,
934 DESCRIPTION1);
935
936 set_reg_field_value(value, audio_info->display_name[2],
937 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO4,
938 DESCRIPTION2);
939
940 set_reg_field_value(value, audio_info->display_name[3],
941 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO4,
942 DESCRIPTION3);
943
944 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO4, value);
945
946 value = 0;
947 set_reg_field_value(value, audio_info->display_name[4],
948 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO5,
949 DESCRIPTION4);
950
951 set_reg_field_value(value, audio_info->display_name[5],
952 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO5,
953 DESCRIPTION5);
954
955 set_reg_field_value(value, audio_info->display_name[6],
956 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO5,
957 DESCRIPTION6);
958
959 set_reg_field_value(value, audio_info->display_name[7],
960 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO5,
961 DESCRIPTION7);
962
963 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO5, value);
964
965 value = 0;
966 set_reg_field_value(value, audio_info->display_name[8],
967 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO6,
968 DESCRIPTION8);
969
970 set_reg_field_value(value, audio_info->display_name[9],
971 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO6,
972 DESCRIPTION9);
973
974 set_reg_field_value(value, audio_info->display_name[10],
975 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO6,
976 DESCRIPTION10);
977
978 set_reg_field_value(value, audio_info->display_name[11],
979 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO6,
980 DESCRIPTION11);
981
982 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO6, value);
983
984 value = 0;
985 set_reg_field_value(value, audio_info->display_name[12],
986 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO7,
987 DESCRIPTION12);
988
989 set_reg_field_value(value, audio_info->display_name[13],
990 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO7,
991 DESCRIPTION13);
992
993 set_reg_field_value(value, audio_info->display_name[14],
994 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO7,
995 DESCRIPTION14);
996
997 set_reg_field_value(value, audio_info->display_name[15],
998 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO7,
999 DESCRIPTION15);
1000
1001 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO7, value);
1002
1003 value = 0;
1004 set_reg_field_value(value, audio_info->display_name[16],
1005 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO8,
1006 DESCRIPTION16);
1007
1008 set_reg_field_value(value, audio_info->display_name[17],
1009 AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO8,
1010 DESCRIPTION17);
1011
1012 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO8, value);
1013 value = AZ_REG_READ(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL);
1014 set_reg_field_value(value, 0,
1015 AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL,
1016 CLOCK_GATING_DISABLE);
1017 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, value);
1018}
1019
1020/*
1021* todo: wall clk related functionality probably belong to clock_src.
1022*/
1023
1024/* search pixel clock value for Azalia HDMI Audio */
1025static void get_azalia_clock_info_hdmi(
1026 uint32_t crtc_pixel_clock_100hz,
1027 uint32_t actual_pixel_clock_100Hz,
1028 struct azalia_clock_info *azalia_clock_info)
1029{
1030 /* audio_dto_phase= 24 * 10,000;
1031 * 24MHz in [100Hz] units */
1032 azalia_clock_info->audio_dto_phase =
1033 24 * 10000;
1034
1035 /* audio_dto_module = PCLKFrequency * 10,000;
1036 * [khz] -> [100Hz] */
1037 azalia_clock_info->audio_dto_module =
1038 actual_pixel_clock_100Hz;
1039}
1040
1041static void get_azalia_clock_info_dp(
1042 uint32_t requested_pixel_clock_100Hz,
1043 const struct audio_pll_info *pll_info,
1044 struct azalia_clock_info *azalia_clock_info)
1045{
1046 /* Reported dpDtoSourceClockInkhz value for
1047 * DCE8 already adjusted for SS, do not need any
1048 * adjustment here anymore
1049 */
1050
1051 /*audio_dto_phase = 24 * 10,000;
1052 * 24MHz in [100Hz] units */
1053 azalia_clock_info->audio_dto_phase = 24 * 10000;
1054
1055 /*audio_dto_module = dpDtoSourceClockInkhz * 10,000;
1056 * [khz] ->[100Hz] */
1057 azalia_clock_info->audio_dto_module =
1058 pll_info->audio_dto_source_clock_in_khz * 10;
1059}
1060
1061void dce_aud_wall_dto_setup(
1062 struct audio *audio,
1063 enum signal_type signal,
1064 const struct audio_crtc_info *crtc_info,
1065 const struct audio_pll_info *pll_info)
1066{
1067 struct dce_audio *aud = DCE_AUD(audio);
1068
1069 struct azalia_clock_info clock_info = { 0 };
1070
1071 if (dc_is_hdmi_tmds_signal(signal)) {
1072 uint32_t src_sel;
1073
1074 /*DTO0 Programming goal:
1075 -generate 24MHz, 128*Fs from 24MHz
1076 -use DTO0 when an active HDMI port is connected
1077 (optionally a DP is connected) */
1078
1079 /* calculate DTO settings */
1080 get_azalia_clock_info_hdmi(
1081 crtc_pixel_clock_100hz: crtc_info->requested_pixel_clock_100Hz,
1082 actual_pixel_clock_100Hz: crtc_info->calculated_pixel_clock_100Hz,
1083 azalia_clock_info: &clock_info);
1084
1085 DC_LOG_HW_AUDIO("\n%s:Input::requested_pixel_clock_100Hz = %d"\
1086 "calculated_pixel_clock_100Hz =%d\n"\
1087 "audio_dto_module = %d audio_dto_phase =%d \n\n", __func__,\
1088 crtc_info->requested_pixel_clock_100Hz,\
1089 crtc_info->calculated_pixel_clock_100Hz,\
1090 clock_info.audio_dto_module,\
1091 clock_info.audio_dto_phase);
1092
1093 /* On TN/SI, Program DTO source select and DTO select before
1094 programming DTO modulo and DTO phase. These bits must be
1095 programmed first, otherwise there will be no HDMI audio at boot
1096 up. This is a HW sequence change (different from old ASICs).
1097 Caution when changing this programming sequence.
1098
1099 HDMI enabled, using DTO0
1100 program master CRTC for DTO0 */
1101 src_sel = pll_info->dto_source - DTO_SOURCE_ID0;
1102 REG_UPDATE_2(DCCG_AUDIO_DTO_SOURCE,
1103 DCCG_AUDIO_DTO0_SOURCE_SEL, src_sel,
1104 DCCG_AUDIO_DTO_SEL, 0);
1105
1106 /* module */
1107 REG_UPDATE(DCCG_AUDIO_DTO0_MODULE,
1108 DCCG_AUDIO_DTO0_MODULE, clock_info.audio_dto_module);
1109
1110 /* phase */
1111 REG_UPDATE(DCCG_AUDIO_DTO0_PHASE,
1112 DCCG_AUDIO_DTO0_PHASE, clock_info.audio_dto_phase);
1113 } else {
1114 /*DTO1 Programming goal:
1115 -generate 24MHz, 512*Fs, 128*Fs from 24MHz
1116 -default is to used DTO1, and switch to DTO0 when an audio
1117 master HDMI port is connected
1118 -use as default for DP
1119
1120 calculate DTO settings */
1121 get_azalia_clock_info_dp(
1122 requested_pixel_clock_100Hz: crtc_info->requested_pixel_clock_100Hz,
1123 pll_info,
1124 azalia_clock_info: &clock_info);
1125
1126 /* Program DTO select before programming DTO modulo and DTO
1127 phase. default to use DTO1 */
1128
1129 REG_UPDATE(DCCG_AUDIO_DTO_SOURCE,
1130 DCCG_AUDIO_DTO_SEL, 1);
1131
1132 /* DCCG_AUDIO_DTO2_USE_512FBR_DTO, 1)
1133 * Select 512fs for DP TODO: web register definition
1134 * does not match register header file
1135 * DCE11 version it's commented out while DCE8 it's set to 1
1136 */
1137
1138 /* module */
1139 REG_UPDATE(DCCG_AUDIO_DTO1_MODULE,
1140 DCCG_AUDIO_DTO1_MODULE, clock_info.audio_dto_module);
1141
1142 /* phase */
1143 REG_UPDATE(DCCG_AUDIO_DTO1_PHASE,
1144 DCCG_AUDIO_DTO1_PHASE, clock_info.audio_dto_phase);
1145
1146 if (aud->masks->DCCG_AUDIO_DTO2_USE_512FBR_DTO)
1147 REG_UPDATE(DCCG_AUDIO_DTO_SOURCE,
1148 DCCG_AUDIO_DTO2_USE_512FBR_DTO, 1);
1149
1150 }
1151}
1152
1153#if defined(CONFIG_DRM_AMD_DC_SI)
1154static void dce60_aud_wall_dto_setup(
1155 struct audio *audio,
1156 enum signal_type signal,
1157 const struct audio_crtc_info *crtc_info,
1158 const struct audio_pll_info *pll_info)
1159{
1160 struct dce_audio *aud = DCE_AUD(audio);
1161
1162 struct azalia_clock_info clock_info = { 0 };
1163
1164 if (dc_is_hdmi_signal(signal)) {
1165 uint32_t src_sel;
1166
1167 /*DTO0 Programming goal:
1168 -generate 24MHz, 128*Fs from 24MHz
1169 -use DTO0 when an active HDMI port is connected
1170 (optionally a DP is connected) */
1171
1172 /* calculate DTO settings */
1173 get_azalia_clock_info_hdmi(
1174 crtc_pixel_clock_100hz: crtc_info->requested_pixel_clock_100Hz,
1175 actual_pixel_clock_100Hz: crtc_info->calculated_pixel_clock_100Hz,
1176 azalia_clock_info: &clock_info);
1177
1178 DC_LOG_HW_AUDIO("\n%s:Input::requested_pixel_clock_100Hz = %d"\
1179 "calculated_pixel_clock_100Hz =%d\n"\
1180 "audio_dto_module = %d audio_dto_phase =%d \n\n", __func__,\
1181 crtc_info->requested_pixel_clock_100Hz,\
1182 crtc_info->calculated_pixel_clock_100Hz,\
1183 clock_info.audio_dto_module,\
1184 clock_info.audio_dto_phase);
1185
1186 /* On TN/SI, Program DTO source select and DTO select before
1187 programming DTO modulo and DTO phase. These bits must be
1188 programmed first, otherwise there will be no HDMI audio at boot
1189 up. This is a HW sequence change (different from old ASICs).
1190 Caution when changing this programming sequence.
1191
1192 HDMI enabled, using DTO0
1193 program master CRTC for DTO0 */
1194 src_sel = pll_info->dto_source - DTO_SOURCE_ID0;
1195 REG_UPDATE_2(DCCG_AUDIO_DTO_SOURCE,
1196 DCCG_AUDIO_DTO0_SOURCE_SEL, src_sel,
1197 DCCG_AUDIO_DTO_SEL, 0);
1198
1199 /* module */
1200 REG_UPDATE(DCCG_AUDIO_DTO0_MODULE,
1201 DCCG_AUDIO_DTO0_MODULE, clock_info.audio_dto_module);
1202
1203 /* phase */
1204 REG_UPDATE(DCCG_AUDIO_DTO0_PHASE,
1205 DCCG_AUDIO_DTO0_PHASE, clock_info.audio_dto_phase);
1206 } else {
1207 /*DTO1 Programming goal:
1208 -generate 24MHz, 128*Fs from 24MHz (DCE6 does not support 512*Fs)
1209 -default is to used DTO1, and switch to DTO0 when an audio
1210 master HDMI port is connected
1211 -use as default for DP
1212
1213 calculate DTO settings */
1214 get_azalia_clock_info_dp(
1215 requested_pixel_clock_100Hz: crtc_info->requested_pixel_clock_100Hz,
1216 pll_info,
1217 azalia_clock_info: &clock_info);
1218
1219 /* Program DTO select before programming DTO modulo and DTO
1220 phase. default to use DTO1 */
1221
1222 REG_UPDATE(DCCG_AUDIO_DTO_SOURCE,
1223 DCCG_AUDIO_DTO_SEL, 1);
1224
1225 /* DCCG_AUDIO_DTO2_USE_512FBR_DTO, 1)
1226 * Cannot select 512fs for DP
1227 *
1228 * DCE6 has no DCCG_AUDIO_DTO2_USE_512FBR_DTO mask
1229 */
1230
1231 /* module */
1232 REG_UPDATE(DCCG_AUDIO_DTO1_MODULE,
1233 DCCG_AUDIO_DTO1_MODULE, clock_info.audio_dto_module);
1234
1235 /* phase */
1236 REG_UPDATE(DCCG_AUDIO_DTO1_PHASE,
1237 DCCG_AUDIO_DTO1_PHASE, clock_info.audio_dto_phase);
1238
1239 /* DCE6 has no DCCG_AUDIO_DTO2_USE_512FBR_DTO mask in DCCG_AUDIO_DTO_SOURCE reg */
1240
1241 }
1242}
1243#endif
1244
1245static bool dce_aud_endpoint_valid(struct audio *audio)
1246{
1247 uint32_t value;
1248 uint32_t port_connectivity;
1249
1250 value = AZ_REG_READ(
1251 AZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_CONFIGURATION_DEFAULT);
1252
1253 port_connectivity = get_reg_field_value(value,
1254 AZALIA_F0_CODEC_PIN_CONTROL_RESPONSE_CONFIGURATION_DEFAULT,
1255 PORT_CONNECTIVITY);
1256
1257 return !(port_connectivity == 1);
1258}
1259
1260/* initialize HW state */
1261void dce_aud_hw_init(
1262 struct audio *audio)
1263{
1264 uint32_t value;
1265 struct dce_audio *aud = DCE_AUD(audio);
1266
1267 /* we only need to program the following registers once, so we only do
1268 it for the inst 0*/
1269 if (audio->inst != 0)
1270 return;
1271
1272 /* Suport R5 - 32khz
1273 * Suport R6 - 44.1khz
1274 * Suport R7 - 48khz
1275 */
1276 /*disable clock gating before write to endpoint register*/
1277 value = AZ_REG_READ(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL);
1278 set_reg_field_value(value, 1,
1279 AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL,
1280 CLOCK_GATING_DISABLE);
1281 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, value);
1282 REG_UPDATE(AZALIA_F0_CODEC_FUNCTION_PARAMETER_SUPPORTED_SIZE_RATES,
1283 AUDIO_RATE_CAPABILITIES, 0x70);
1284
1285 /*Keep alive bit to verify HW block in BU. */
1286 REG_UPDATE_2(AZALIA_F0_CODEC_FUNCTION_PARAMETER_POWER_STATES,
1287 CLKSTOP, 1,
1288 EPSS, 1);
1289 set_reg_field_value(value, 0,
1290 AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL,
1291 CLOCK_GATING_DISABLE);
1292 AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, value);
1293}
1294
1295static const struct audio_funcs funcs = {
1296 .endpoint_valid = dce_aud_endpoint_valid,
1297 .hw_init = dce_aud_hw_init,
1298 .wall_dto_setup = dce_aud_wall_dto_setup,
1299 .az_enable = dce_aud_az_enable,
1300 .az_disable = dce_aud_az_disable,
1301 .az_configure = dce_aud_az_configure,
1302 .az_disable_hbr_audio = dce_aud_az_disable_hbr_audio,
1303 .destroy = dce_aud_destroy,
1304};
1305
1306#if defined(CONFIG_DRM_AMD_DC_SI)
1307static const struct audio_funcs dce60_funcs = {
1308 .endpoint_valid = dce_aud_endpoint_valid,
1309 .hw_init = dce_aud_hw_init,
1310 .wall_dto_setup = dce60_aud_wall_dto_setup,
1311 .az_enable = dce_aud_az_enable,
1312 .az_disable = dce_aud_az_disable,
1313 .az_configure = dce_aud_az_configure,
1314 .destroy = dce_aud_destroy,
1315};
1316#endif
1317
1318void dce_aud_destroy(struct audio **audio)
1319{
1320 struct dce_audio *aud = DCE_AUD(*audio);
1321
1322 kfree(objp: aud);
1323 *audio = NULL;
1324}
1325
1326struct audio *dce_audio_create(
1327 struct dc_context *ctx,
1328 unsigned int inst,
1329 const struct dce_audio_registers *reg,
1330 const struct dce_audio_shift *shifts,
1331 const struct dce_audio_mask *masks
1332 )
1333{
1334 struct dce_audio *audio = kzalloc(sizeof(*audio), GFP_KERNEL);
1335
1336 if (audio == NULL) {
1337 ASSERT_CRITICAL(audio);
1338 return NULL;
1339 }
1340
1341 audio->base.ctx = ctx;
1342 audio->base.inst = inst;
1343 audio->base.funcs = &funcs;
1344
1345 audio->regs = reg;
1346 audio->shifts = shifts;
1347 audio->masks = masks;
1348 return &audio->base;
1349}
1350
1351#if defined(CONFIG_DRM_AMD_DC_SI)
1352struct audio *dce60_audio_create(
1353 struct dc_context *ctx,
1354 unsigned int inst,
1355 const struct dce_audio_registers *reg,
1356 const struct dce_audio_shift *shifts,
1357 const struct dce_audio_mask *masks
1358 )
1359{
1360 struct dce_audio *audio = kzalloc(sizeof(*audio), GFP_KERNEL);
1361
1362 if (audio == NULL) {
1363 ASSERT_CRITICAL(audio);
1364 return NULL;
1365 }
1366
1367 audio->base.ctx = ctx;
1368 audio->base.inst = inst;
1369 audio->base.funcs = &dce60_funcs;
1370
1371 audio->regs = reg;
1372 audio->shifts = shifts;
1373 audio->masks = masks;
1374 return &audio->base;
1375}
1376#endif
1377

source code of linux/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c